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On the Cover

September-October 2010
Volume 98, Number 5

The National Ignition Facility (NIF) in California is a 192-beam laser...


FEATURE ARTICLES

Evolution on a Frozen Continent *

David Lambert, Craig Millar, Siva Swaminathan, Carlo Baroni

Ancient DNA studies of penguins provide a window on evolution


High-power Lasers *

Todd Ditmire

Fifty years after the first beam fired, short pulses produce immense power


A Bigger, Better Brain *

Maddalena Bearzi, Craig Stanford

Chimpanzees and dolphins may demonstrate human-like intelligence


Gifts and Perils of Landslides

Kenneth Hewitt

Rockslides are integral to human settlement along upper Indus streams


* access restricted to members and subscribers


DEPARTMENTS

MACROSCOPE

Zeroing in on Cancer

As targeted cancer therapies get more specific, the targets get rarer

Carlos F. Amábile-Cuevas

COMPUTING SCIENCE

The Great Principles of Computing

Computing may be the fourth great domain of science along with the physical, life and social sciences

Peter J. Denning

ENGINEERING

Hoover Dam Bypass*

A bridge's design becomes a special challenge when it shares scenery with an engineering icon

Henry Petroski

MARGINALIA

Learning and Teaching Strategies

From personal experience and research comes advice on what works and why

Roald Hoffmann and Saundra Y. McGuire

SIGHTINGS

Hiding in Plain Sight

The architecture of neural fibers

Catherine Clabby

SCIENCE OBSERVER

Epic Science

At an international colloquium this September, researchers will tell the story of science poetry's evolution

Anna Lena Phillips

Royal Treatment

The Royal Society celebrates 350 years and a new president

The Editors

In the News

LETTERS TO THE EDITORS

A Thorium Future

Botanical Complexities

SIGMA XI TODAY (PDF)


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